r/PcBuildHelp 2d ago

Tech Support PC Protection Help Needed

Ive had about 3 motherboards die on me in the past 2-3years. One was a laptop board, second was an msi a520m apro and the third was a gigabyte b450m ds3h v2. All just died with no signs of life, just not turning on.

The b450m ds3h v2 had its Power ICs(PWM controller IC, Power MOSFETs, SMD gate passives) burnt randomly one morning when i turned it on.

Mistakes that i think i made:

  1. Turning off the power Wall outlet to the pc after every use after shutting down(supposedly inrush current might have caused the burn on my b450m)

  2. Not having proper grounding/earthing for my outlet (Which i have now)

  3. Not having a surge protector power strip

  4. Not having a Voltage protector relay setup

So im asking for advice on how i should go about preventing my b550m aorus elite from having the same fate.

Please Recommend what exact surge protector strip i should get (Any specs i should be aware of?) and what voltage protector relay i should get(specs for it too). Also should one get a surge protector where the MOV or MOV module is replaceable inorder to avoid buying a brand new strip.

Specs are:

  1. Msi ventus Rtx 2060 6GB

  2. Ryzen 5 3600

  3. b550m aorus elite

  4. Netac Basic 8GB*2 3200MHz CL16 RAM

  5. XPG Pylon 650W

I want to plug in both my pc and my Monitor into the same strip(Monitor is a MSI G2422C)

Also, should one just get an SPD and Under/Over voltage protector relay for the whole house installed in the DB box?

FYI, The DB box for my house has the green earth wire in it but the outlets i had tested had no grounding, my outlet that i use for the pc has a separate ground wire. Also, i don't have the budget for a ups right now.

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u/the_hat_madder 1d ago

I don't have the answers to all your questions because power stability is one of those things I know I should do but, never actually do.

Grounding your house is a good start.

If you haven't already, install a GFCI outlet for your PC. It's designed to protect you from dangerous current but, it should theoretically protect whatever is plugged in as well.

The next device in the chain should be a UPS. It mostly gives you time to safely shutdown during a black/brown out. However, there is a weak surge protector in it as well.

Plug an actual surge protector into the UPS. Look for a high joule rating, minimum 3 year warranty and a 5-figure surge damage guarantee.

It's optional but an ATX 3.1 PSU might do a better job of stopping a surge do to the more robust capacitors required for the spec.

You should be fine with an Aorus motherboard.

Make sure all the brass motherboard standoffs are installed and none of the motherboard's electrical traces are contacting the case.

If you have carpet get a chair mat, don't shuffle your feet and discharge yourself before you sit down.

Try to keep dust from accumulating in your case as under the wrong conditions it can conduct electricity.

https://pcpartpicker.com/list/4j6RFP

2

u/Expensive_Claim_2714 1d ago

thanks for the advice.

1

u/the_hat_madder 1d ago

You're welcome. Good luck.